Case Converter

Convert to a specific case

Jump straight to a dedicated converter for the style you need:

• Title Case Converter
• camelCase Converter
• snake_case Converter
• kebab-case Converter
• PascalCase Converter
• UPPERCASE Converter
• Lowercase Converter
• Sentence Case Converter
• CONSTANT_CASE Converter

What is a case converter?

A case converter rewrites text from one letter-case style to another: shouting in UPPERCASE, writing quietly in lowercase, polishing a headline in Title Case, or preparing an identifier like camelCase or snake_case for source code. Instead of retyping everything by hand, you paste your text once and pick the style you need — the conversion is instant.

How to use this tool

1. Type or paste your text into the input box above. The word and character counter updates as you type.
2. Click any conversion button — UPPERCASE, Title Case, camelCase, and more.
3. The converted text appears in the result area. Click Copy output to copy it to your clipboard.

When splitting text into words, the tool understands spaces, underscores, hyphens and camelCase boundaries, so myVariableName, my-variable-name and my variable name all convert cleanly to any other style.

Naming conventions in programming

Different languages and communities prefer different identifier styles. This tool covers the most common ones:

• camelCase — the standard for variables and functions in JavaScript, Java and C# (e.g. getUserName).
• PascalCase — used for classes, types and components (e.g. UserProfile).
• snake_case — common in Python, Ruby, Rust and SQL (e.g. user_name).
• kebab-case — used in URLs, CSS classes and HTML attributes (e.g. main-header).
• CONSTANT_CASE — the convention for constants and environment variables (e.g. MAX_RETRY_COUNT).

Common mistakes when converting case

• Expecting editorial Title Case. The Title Case button capitalizes every word, including short ones: "the lord of the rings" becomes "The Lord Of The Rings". Style guides like AP and Chicago keep words such as "of", "the" and "and" lowercase, so adjust those by hand afterward.
• Losing apostrophes. Word-based styles (Title Case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE) split on anything that is not a letter or digit, so "don't stop" turns into "Don T Stop" or "don_t_stop". Remove or restore apostrophes after converting.
• Sentence case and proper nouns. Sentence case lowercases the whole text, then capitalizes only the first letter of each sentence, so "i visited NASA in june. it was fun." becomes "I visited nasa in june. It was fun." Re-capitalize names and acronyms yourself.

Pro tips

• Rescue a Caps Lock accident with InVeRsE CaSe. Text typed as "hELLO wORLD" while Caps Lock inverted your Shift key flips back to "Hello World" in one click.
• Acronyms split cleanly. "HTMLParser" converts to "htmlParser" with camelCase and "html_parser" with snake_case, because the word splitter detects where an acronym ends and the next word begins.
• Only letters alternate. In aLtErNaTiNg CaSe, digits, spaces and punctuation stay in place and do not break the pattern: "abc 123 def" becomes "aBc 123 dEf".

Frequently asked questions